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Document encode(bytea, 'escape')'s behavior correctly. 

I changed this in commit fd15dba543, but
missed the fact that the SGML documentation of the function specified
exactly what it did.  Well, one of the two places where it's specified
documented that --- probably I looked at the other place and thought
nothing needed to be done.  Sync the two places where encode() and
decode() are described.
This commit is contained in:
Tom Lane 2013-03-28 23:14:54 -04:00
parent aa02864f64
commit 9ad27c2153
1 changed files with 12 additions and 8 deletions
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20
doc/src/sgml/func.sgml
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@ -1506,7 +1506,8 @@
<entry> <entry>
Encode binary data into a textual representation. Supported Encode binary data into a textual representation. Supported
formats are: <literal>base64</>, <literal>hex</>, <literal>escape</>. formats are: <literal>base64</>, <literal>hex</>, <literal>escape</>.
<literal>escape</> merely outputs null bytes as <literal>\000</> and <literal>escape</> converts zero bytes and high-bit-set bytes to
octal sequences (<literal>\</><replaceable>nnn</>) and
doubles backslashes. doubles backslashes.
</entry> </entry>
<entry><literal>encode(E'123\\000\\001', 'base64')</literal></entry> <entry><literal>encode(E'123\\000\\001', 'base64')</literal></entry>
@ -3234,12 +3235,12 @@ SELECT format('Testing %3$s, %2$s, %s', 'one', 'two', 'three');
<primary>decode</primary> <primary>decode</primary>
</indexterm> </indexterm>
<literal><function>decode(<parameter>string</parameter> <type>text</type>, <literal><function>decode(<parameter>string</parameter> <type>text</type>,
<parameter>type</parameter> <type>text</type>)</function></literal> <parameter>format</parameter> <type>text</type>)</function></literal>
</entry> </entry>
<entry><type>bytea</type></entry> <entry><type>bytea</type></entry>
<entry> <entry>
Decode binary string from <parameter>string</parameter> previously Decode binary data from textual representation in <parameter>string</>.
encoded with <function>encode</>. Parameter type is same as in <function>encode</>. Options for <parameter>format</> are same as in <function>encode</>.
</entry> </entry>
<entry><literal>decode(E'123\\000456', 'escape')</literal></entry> <entry><literal>decode(E'123\\000456', 'escape')</literal></entry>
<entry><literal>123\000456</literal></entry> <entry><literal>123\000456</literal></entry>
@ -3250,13 +3251,16 @@ SELECT format('Testing %3$s, %2$s, %s', 'one', 'two', 'three');
<indexterm> <indexterm>
<primary>encode</primary> <primary>encode</primary>
</indexterm> </indexterm>
<literal><function>encode(<parameter>string</parameter> <type>bytea</type>, <literal><function>encode(<parameter>data</parameter> <type>bytea</type>,
<parameter>type</parameter> <type>text</type>)</function></literal> <parameter>format</parameter> <type>text</type>)</function></literal>
</entry> </entry>
<entry><type>text</type></entry> <entry><type>text</type></entry>
<entry> <entry>
Encode binary string to <acronym>ASCII</acronym>-only representation. Supported Encode binary data into a textual representation. Supported
types are: <literal>base64</>, <literal>hex</>, <literal>escape</>. formats are: <literal>base64</>, <literal>hex</>, <literal>escape</>.
<literal>escape</> converts zero bytes and high-bit-set bytes to
octal sequences (<literal>\</><replaceable>nnn</>) and
doubles backslashes.
</entry> </entry>
<entry><literal>encode(E'123\\000456'::bytea, 'escape')</literal></entry> <entry><literal>encode(E'123\\000456'::bytea, 'escape')</literal></entry>
<entry><literal>123\000456</literal></entry> <entry><literal>123\000456</literal></entry>